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81856f70 | 1 | <html> |
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2 | <head> |
3 | <meta http-equiv="X-UA-Compatible" content="IE=EmulateIE7; IE=EmulateIE9"> | |
4 | <title>isZoomedIgnoreProgrammaticZoom Flag</title> | |
5 | <!--[if IE]> | |
6 | <script type="text/javascript" src="../excanvas.js"></script> | |
7 | <![endif]--> | |
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8 | <!-- |
9 | For production (minified) code, use: | |
10 | <script type="text/javascript" src="dygraph-combined.js"></script> | |
11 | --> | |
12 | <script type="text/javascript" src="../dygraph-dev.js"></script> | |
13 | ||
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14 | <script type="text/javascript" src="data.js"></script> |
15 | </head> | |
16 | <body> | |
17 | <!-- Ensure that the documentation generator picks us up: {isZoomedIgnoreProgrammaticZoom:} --> | |
18 | <h1>isZoomedIgnoreProgrammaticZoom Option</h1> | |
19 | <p> | |
20 | By default, when the <code>dateWindow</code> or <code>updateOptions</code> | |
21 | of a chart is changed programmatically by a call to <code>updateOptions</code> | |
22 | the zoomed flags (<code>isZoomed</code>) are changed. This is the same | |
23 | as manually zooming in using the mouse. | |
24 | </p> | |
25 | <p> | |
26 | Sometimes it may be desirable to change the display of the chart by | |
27 | manipulating the <code>dateWindow</code> and <code>valueRange</code> | |
28 | options but without changing the zoomed flags, for example where manual | |
29 | zooming is still required but where it is also desired that the zoomed | |
30 | flags drive display elements, but only for manual zooming. | |
31 | </p> | |
32 | <p> | |
33 | In this case <code>isZoomedIgnoreProgrammaticZoom</code> may be specified along with | |
34 | either the <code>dateWindow</code> or <code>valueRange</code> values to | |
35 | <code>updateOptions</code> and the zoomed flags will remain unaffected. | |
36 | </p> | |
37 | <p> | |
38 | The chart below may be manipulated to change the <code>updateOptions</code> | |
39 | using the Max and Min Y axis buttons and the <code>dateWindow</code> | |
40 | by using the Max and Min X axis buttons. | |
41 | </p> | |
42 | <p> | |
43 | Toggle the check box below to determine the difference in operation of the zoom flags | |
44 | when the date and value windows of the chart are changed using the arrows underneath. | |
45 | </p> | |
46 | <p><input id="isZoomedIgnoreProgrammaticZoom" type="checkbox" checked=true />Do not change zoom flags (<code>isZoomedIgnoreProgrammaticZoom</code>)</p> | |
47 | ||
48 | <div> | |
49 | <div style="float: left"> | |
485efa38 | 50 | <p> |
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51 | Max Y Axis: |
52 | <input type="button" value="↑" onclick="adjustTop(+1)" /> | |
53 | <input type="button" value="↓" onclick="adjustTop(-1)" /> | |
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54 | </p> |
55 | <p> | |
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56 | Min Y Axis: |
57 | <input type="button" value="↑" onclick="adjustBottom(+1)" /> | |
58 | <input type="button" value="↓" onclick="adjustBottom(-1)" /> | |
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59 | </p> |
60 | <p> | |
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61 | Min X Axis: |
62 | <input type="button" value="←" onclick="adjustFirst(-100000000)" /> | |
63 | <input type="button" value="→" onclick="adjustFirst(+100000000)" /> | |
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64 | </p> |
65 | <p> | |
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66 | Max X Axis: |
67 | <input type="button" value="←" onclick="adjustLast(-100000000)" /> | |
68 | <input type="button" value="→" onclick="adjustLast(+100000000)" /> | |
485efa38 | 69 | </p> |
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70 | </div> |
71 | <div id="div_g" style="width: 600px; height: 300px; float: left"></div> | |
72 | <div style="float: left"> | |
81856f70 | 73 | |
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74 | </div> |
75 | </div> | |
76 | <div style="display: inline-block"> | |
77 | <h4> Zoomed Flags</h4> | |
78 | <p>Zoomed: <span id="zoomed">False</span></p> | |
79 | <p>Zoomed X: <span id="zoomedX">False</span></p> | |
80 | <p>Zoomed Y: <span id="zoomedY">False</span></p> | |
81 | <h4>Window coordinates (in dates and values):</h4> | |
82 | <div id="xdimensions"></div> | |
83 | <div id="ydimensions"></div> | |
84 | </div> | |
485efa38 | 85 | |
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86 | <script type="text/javascript"> |
87 | g = new Dygraph( | |
88 | document.getElementById("div_g"), | |
89 | NoisyData, | |
90 | { | |
91 | errorBars: true, | |
92 | zoomCallback : function(minDate, maxDate, yRange) { | |
93 | showDimensions(minDate, maxDate, yRange); | |
94 | }, | |
95 | drawCallback: function(me, initial) { | |
96 | document.getElementById("zoomed").innerHTML = "" + me.isZoomed(); | |
97 | document.getElementById("zoomedX").innerHTML = "" + me.isZoomed("x"); | |
98 | document.getElementById("zoomedY").innerHTML = "" + me.isZoomed("y"); | |
99 | var x_range = me.xAxisRange() | |
100 | var elem = document.getElementById("xdimensions") | |
101 | elem.innerHTML = "dateWindow : [" + x_range[0] + ", "+ x_range[1] + "]" | |
102 | } | |
103 | } | |
104 | ) | |
81856f70 | 105 | |
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106 | // Pull an initial value for logging. |
107 | var minDate = g.xAxisRange()[0]; | |
108 | var maxDate = g.xAxisRange()[1]; | |
109 | var minValue = g.yAxisRange()[0]; | |
110 | var maxValue = g.yAxisRange()[1]; | |
111 | showDimensions(minDate, maxDate, [minValue, maxValue]); | |
81856f70 | 112 | |
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113 | function showDimensions(minDate, maxDate, yRanges) { |
114 | showXDimensions(minDate, maxDate); | |
115 | showYDimensions(yRanges); | |
116 | } | |
81856f70 | 117 | |
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118 | function getNoChange() { |
119 | var options = {} | |
120 | var elem = document.getElementById("isZoomedIgnoreProgrammaticZoom") | |
121 | if (elem.checked) { | |
122 | options.isZoomedIgnoreProgrammaticZoom = true | |
123 | } | |
124 | return options | |
125 | } | |
81856f70 | 126 | |
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127 | function adjustTop(value) { |
128 | options = getNoChange() | |
129 | maxValue += value | |
130 | options.valueRange = [minValue, maxValue] | |
131 | console.log(options) | |
132 | g.updateOptions(options) | |
133 | } | |
81856f70 | 134 | |
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135 | function adjustBottom(value) { |
136 | options = getNoChange() | |
137 | minValue += value | |
138 | options.valueRange = [minValue, maxValue] | |
139 | console.log(options) | |
140 | g.updateOptions(options) | |
141 | } | |
81856f70 | 142 | |
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143 | function adjustFirst(value) { |
144 | options = getNoChange() | |
145 | minDate += value | |
146 | options.dateWindow = [minDate, maxDate] | |
147 | console.log(options) | |
148 | g.updateOptions(options) | |
149 | } | |
81856f70 | 150 | |
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151 | function adjustLast(value) { |
152 | options = getNoChange() | |
153 | maxDate += value | |
154 | options.dateWindow = [minDate, maxDate] | |
155 | g.updateOptions(options) | |
156 | } | |
81856f70 | 157 | |
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158 | function showXDimensions(first, second) { |
159 | var elem = document.getElementById("xdimensions"); | |
160 | elem.innerHTML = "dateWindow: [" + first + ", "+ second + "]"; | |
161 | } | |
81856f70 | 162 | |
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163 | function showYDimensions(ranges) { |
164 | var elem = document.getElementById("ydimensions"); | |
165 | elem.innerHTML = "valueRange: [" + ranges + "]"; | |
166 | } | |
81856f70 | 167 | |
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168 | </script> |
169 | </body> | |
81856f70 | 170 | </html> |